| 摘要 |
FIELD: transport.SUBSTANCE: bulldozer comprises basic machine, frame with hydraulic cylinders of lifting-lowering consisting of stiff main section articulated with basic machine and additional section telescoping relative to main section and drive cylinders, blade articulated with additional section, and inclined supports with upper and lower hinges. Frame main section is composed of two fixed push bars pivoted together, transverse link and two horizontal braces. Said additional section is composed of two moving push straight bars fitted in main section fixed push bars to slide therein. Hydraulic cylinders of sections drive are arranged inside fixed push bars. Note here that said inclined supports are composed of hydraulic cylinders and arranged in one vertical plane with blade hinges. Note also that inclined support lower hinge is secured at fixed push bar while upper support is arranged on retractable blade. All used hinges represent spherical components.EFFECT: higher efficiency, lower costs.2 cl, 4 dwg |
